If you know the enemy and know yourself you will never be defeated.
To win you must plan your victory and know the tactics of your enemy before doing battle.
To win without fighting is best.
Do not act if there is nothing to gain and do not fight if you are not in danger.
A quick victory is best.
Your skill must be one of making your enemy act by creating a situation upon which he is forced to act.
In battle use orthodox tactics to draw your enemy to you and use unorthodox tactics to defeat him.
Avoid your enemy when he is alert and strike him when he is unaware.
Never completely destroy your enemy and when he is trapped allow him a way out.
Genius is the ability to win by being flexible according to the tactics of your enemy.